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Finding the Fourth Proportional to 324,303.11, 486,543.84 and 155,964.25

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Solution

The fourth proportional to 324,303.11, 486,543.84 and 155,964.25 is: 233,989.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,303.11 : 486,543.84 = 155,964.25 : x
  2. Step 2: Convert to fraction form
    324,303.11/486,543.84 = 155,964.25/x
  3. Step 3: Cross multiply
    324,303.11x = 486,543.84 × 155,964.25
  4. Step 4: Simplify right side
    324,303.11x = 75,883,445,097.72
  5. Step 5: Solve for x
    x = 75,883,445,097.72/324,303.11
  6. Step 6: Final answer
    x = 233,989.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.